1. Open the gHe cylinder located at the west wall (right-most cylinder)cylinder, and regulate ~10 psig.
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  2. Open "Vfill".
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  3. Open and close Vvent multiple times to flush, then close Vvent.
  4. Open "SVREF" on the QT HMI screen.


  5. Open  "REGPM" and then open "NVPM" to have some gHe flow.
    ImageImage
  6. Connect the portable purity meter's probe to this port on the QT HMI cabinet.
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  7. Once the purity measurement is taken, then close the valves in the following order.
    NVPM > REGPM > SVREF
  8. Open "Vvent" to vent the pressure in the purge-line from the cylinder while keeping the "Vfill" open.
    Ensure the pressure indicator "on-the-left" on that regulator on the cylinder shows "0" (zero).
  9. Close "Vvent".
  10. Close "Vfill"
  11. Close the cylinder.
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